280+ 240 +
Heat content (H) kilojoules
200+
160 +
120+
80 +
40 +
Time
1. Draw a potential energy diagram, using the template above, to illustrate a
reaction with 190 J of stored energy in the reactants, 20 J of stored energy in the
products, and an activation energy of 70.
2. Then calculate the heat of reaction, AH. Put the value of the heat of reaction in
the first box and its units in the second box.
3. Label your diagram as endothermic or exothermic.
4. Label the energy of the activated complex and give it's value.